CVE-2017-5340
9.8
CRITICAL · CVSS 3.1 · EPSS 16.7% (pctl 97)
Patch early
EPSS 16.7% — above the 10% action threshold.
Description
Zend/zend_hash.c in PHP before 7.0.15 and 7.1.x before 7.1.1 mishandles certain cases that require large array allocations, which allows remote attackers to execute arbitrary code or cause a denial of service (integer overflow, uninitialized memory access, and use of arbitrary destructor function pointers) via crafted serialized data.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 16.69% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-190 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-01-11 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| netapp | clustered data ontap |
| php | php |
References
- http://www.securityfocus.com/bid/95371
- http://www.securitytracker.com/id/1037659
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=73832
- https://github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12
- https://security.netapp.com/advisory/ntap-20180112-0001/
- http://www.securityfocus.com/bid/95371
- http://www.securitytracker.com/id/1037659
- https://access.redhat.com/errata/RHSA-2018:1296
- https://bugs.php.net/bug.php?id=73832
- https://github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12
- https://security.netapp.com/advisory/ntap-20180112-0001/
→ the Explorer · watch your stack · NVD